<?php
declare(strict_types=1);


namespace App\Exchange\Service;

use App\Exchange\Mapper\ExchangePairMapper;
use Mine\Abstracts\AbstractService;

/**
 * 交易对服务类
 */
class ExchangePairService extends AbstractService
{
    /**
     * @var ExchangePairMapper
     */
    public $mapper;

    public function __construct(ExchangePairMapper $mapper)
    {
        $this->mapper = $mapper;
    }
}